Home / 117,348.41-161,898.35-77,084.09

Finding the Fourth Proportional to 117,348.41, 161,898.35 and 77,084.09

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Solution

The fourth proportional to 117,348.41, 161,898.35 and 77,084.09 is: 106,348.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,348.41 : 161,898.35 = 77,084.09 : x
  2. Step 2: Convert to fraction form
    117,348.41/161,898.35 = 77,084.09/x
  3. Step 3: Cross multiply
    117,348.41x = 161,898.35 × 77,084.09
  4. Step 4: Simplify right side
    117,348.41x = 12,479,786,365.47
  5. Step 5: Solve for x
    x = 12,479,786,365.47/117,348.41
  6. Step 6: Final answer
    x = 106,348.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.